The design drawings depict a Spanish rake treatment on the gabled ends of the building. As seen in the photo below, the exterior finish is warped (over a foam filler) to the bottom edge of each rake tile.
Similar to the tile families, the filler is a face-based generic model. When placed it may be aligned with the roof and tiles with line modification commands.
When considering how to achieve this in model form, it became apparent that the previous families would have to be modified. New families have been posted in which the tiles are larger in diameter and length, and also closer to the roof surface.This modification also mandated a change in the method used to correct the rotation when the opposite face is selected as host. A conditional formula combined with a yes/no parameter is now used to reverse the orientation of nested tile families.